102858 has 32 divisors (see below), whose sum is σ = 245760. Its totient is φ = 28080.
The previous prime is 102841. The next prime is 102859. The reversal of 102858 is 858201.
It is not an unprimeable number, because it can be changed into a prime (102859) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1263 + ... + 1341.
It is an arithmetic number, because the mean of its divisors is an integer number (7680).
2102858 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 102858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122880).
102858 is an abundant number, since it is smaller than the sum of its proper divisors (142902).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
102858 is a wasteful number, since it uses less digits than its factorization.
102858 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 122.
The product of its (nonzero) digits is 640, while the sum is 24.
The square root of 102858 is about 320.7148265983. The cubic root of 102858 is about 46.8539300862.
The spelling of 102858 in words is "one hundred two thousand, eight hundred fifty-eight".
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